<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>初次使用less</title>
    <link rel="stylesheet" href="css/01_less的基本使用.css">
</head>
<body>
  <div class="outer">
    <div class="inner"></div>
  </div>
</body>
</html>